Environmentally Benign Processing of Stainless and Nitrided Stainless Steel Coatings Using Jet Vapor Deposition

涂层被广泛用于保护金属表面免受腐蚀和环境退化。与最广泛的涂装工艺相关的严重环境危害，如电沉积和涂装，促进了对环境无害的涂装技术的发展。Jet Process Corporation开发了一种环保、高速率、低成本的涂层工艺--Jet Vapor Deparation(JVD)。除了是一种实用、环保的替代品外，JVD还具有沉积成分可控的多组分涂层的能力。不锈钢是一类多组分材料，其耐蚀性能是众所周知的。这项提议的合作者克莱顿教授等人最近的工作表明，氮合金化显著提高了不锈钢的耐腐蚀性，特别是对含镍和钼的不锈钢。利用JVD合成不锈钢和渗氮不锈钢涂层的初步工作是非常有前景的：这表明JVD为在室温附近合成这类材料的涂层提供了实用的可能性。因此，在拟议的第一阶段计划中，他们将把重点放在JVD不锈钢和氮化不锈钢的合成以及它们的耐腐蚀性展示上。该计划的第二阶段扩展将包括在各种表面上的应用和涂层工艺的放大。这些目标的实现将带来一种经济、无污染的不锈钢和渗氮不锈钢涂层合成工艺。

Coatings are widely used to protect metal surfaces from corrosion and environmental degradation. Serious environmental hazards associated with the most widespread coating processes, such as electrodeposition and painting, have spurred the development of environmentally benign coating technologies. Jet Process Corporation has developed an environmentally benign, high rate, low cost coating process, Jet Vapor Deposition (JVD). In addition to being a practical, environmentally sound alternative, JVD also has the capability to deposit multicomponent coatings with excellent compositional control. The corrosion resistant properties of stainless steels, a class of multicomponent materials, are well known. Recent work by Prof. Clayton et al, the collaborators in this proposal, and others has shown that nitrogen alloying leads to significant improvements in the corrosion resistance of stainless steels: especially for stainless steels containing Ni and Mo. Preliminary work on synthesizing coatings of stainless and nitrided stainless steel using JVD is extremely promising: it suggests that JVD offers the practical possibility of synthesizing coatings of such materials at around room temperature. Consequently, in the proposed Phase I program, they will focus on the synthesis of JVD stainless steels and nitrided stainless steels and demonstration of their corrosion resistance. Phase II extensions of the program will include applications to a variety of surfaces and scale-up of the coating process. Achievement of these goals will result in an economical, pollution-free process for the synthesis of stainless and nitrided stainless steel coatings.